September 15, 2005 18:17 ET

Tyler Announces Drilling Success in Northern Main Zone, Including 30 Meters Grading 1.1% Copper and 0.015% Molybdenum in DDH #40

CALGARY, ALBERTA--(CCNMatthews - Sept. 15, 2005) -

Second Drill Rig Operating on Site

Tyler Resources Inc. is pleased to announce assay results for drill hole #40, located approximately 400 meters north of section 2NE at its Bahuerachi project, Mexico.

Results from drill hole #40 continue to confirm that the main mineralized domains continue to the north including a copper oxide enriched blanket, skarn development, quartz stockworking and mineralized porphyry. Further trenching work in the north has exposed a porphyry phase exhibiting significantly more veining, alteration and copper oxides than encountered in porphyry phases mapped at surface or drilled to date. Drill holes #42 and 44 are currently targeting this porphyry phase and related skarn mineralization at depth.

Significant intervals for drill hole DDH-BAH #40.
From To Interval Copper Gold Silver Zinc Mo Rock
Hole # (m) (m) (m) (%) (g/t) (g/t) (%) (%) Type
BAH-40 13 190.3 177.3 0.34 trace 2.0 trace 0.001 Sediments
(1) /minor skarn
(EOH) /porphyry
74 104 30 1.1 0.04 2.1 trace 0.015 Chalcocite
blanket in
and porphyry
74 180(1) 106 0.46 0.02 1.9 trace 0.013 Chalcocite
and porphyry,
minor skarn
(1) Average grade includes dilution by 2 significant post mineral dykes
totaling 22.4 meters intervals are interpreted true widths.

Tyler is pleased that drilling continues to outline mineralization over a large area associated with the Bahuerachi porphyry complex. All mineralized domains remain open between the Main Zone and the northern step outs as well as to the north, east and west from areas of current drilling in the north. The information from the initial holes and further surface work now allow the drilling to focus on areas with better potential for both higher grades and continuity in the north.

Drilling in the Main Zone is ongoing with the newly mobilized rig (drill hole #43). The objective of this drill hole is to test the western extent of the chalcocite blanket, depth extensions of skarns and porphyry previously identified in drill holes 28, 31, 15 and RC 3. Data from previous drilling suggest thickening of the skarn units at depth on this section.

Construction of access roads for initial drill testing of the porphyry and related targets farther north (Colome skarn trend) and to the south (Goat zone porphyry) of the current drilling areas is well underway and progressing rapidly. The Company has requested bids for 15,000 meters of reverse circulation drilling and is also currently in discussions with a number of groups with regards to bringing additional diamond drilling capacity on site.

Please refer to the drill hole location plan map attached for the general location of all drill holes and sections.

All assay work was performed by ICP at ALS-Chemex labs of Vancouver, with gold done using standard fire assay methods. All samples sent to the lab are sealed with security tags for delivery to ALS-Chemex. Duplicate samples as well as standards and blanks are inserted in each batch of samples delivered to the laboratory and then checked to ensure proper quality assurance and quality control (QA/QC).

The Qualified Person responsible for the design and implementation of the Field Program as well as the preparation of this news release was J. P. Jutras, P.Geol., and President of the Company. The work program was carried out with the participation of Dr. Shane William Ebert, Ph.D, P.Geo and Director, Mr. Brent Gonek, B.Sc, Geology, G.I.T., and Mr. Paul Turnbull, P.Geol, consultants to the Company.

There are maps available on CCNMatthews' website at:


"Jean Pierre Jutras"

Jean Pierre Jutras

All statements, other than statements of historical fact, in this news release are forward-looking statements that involve various risks and uncertainties, including, without limitation, statements regarding the potential extent of mineralization and reserves, exploration results and future plans and objectives of Tyler Resources Inc. These risks and uncertainties include, but are not restricted to, the amount of geological data available, the uncertain reliability of drilling results and geophysical and geological data and the interpretation thereof and the need for adequate financing for future exploration and development efforts. There can be no assurance that such statements will prove to be accurate. Actual results and future events could differ materially from those anticipated in such statements. These and all subsequent written and oral forward-looking statements are based on the estimates and opinions of management on the dates they are made and are expressly qualified in their entirety by this notice. The Company assumes no obligation to update forward-looking statements should circumstances or management's estimates or opinions change.

The TSX Venture Exchange has neither approved nor disapproved of the contents of this press release.

Contact Information

  • Tyler Resources Inc.
    Jean Pierre Jutras
    (403) 269-6753
    Tyler Resources Inc.
    James Devonshire
    (403) 269-6753
    Website: www.tylerresources.com